Research And Implementation Of Three-dimensional Shoting Points Display Performance Optimization And Interaction Technology

With the continuous development of software design and application in the field of the seismic acquisition,the function improvement and performance optimization of 3D observation system have become the focus of current research.Shoting point is one of the most important rendering objects in the 3D observation system,its maximum scale of deployed in earth surface can reach tens of millions.However,there are still problems in 3D observation system such as poor display effect and imperfect interaction.How to optimize the performance based on the existing shoting points display system and complete the relevant function of interaction based on shoting points are the development point of the field.This thesis proposes an optimization method and interaction scheme for massive shoting points.The research contents are as follows:(1)In order to optimize the effect of shoting points display,this thesis proposes an shoting points diluting algorithm based on observation of sighting distance is.The algorithm performs real-time diluting processing on the 3D surface based on different sighting distance during observation.This algorithm improves the scene frame rate and optimizes the display effect and use experience.(2)In order to improve the specification layout of shoting points,this thesis implements a function to render the grid on the 3D surface,and obtain the real-time elevation value of the grid line control point by running the interpolation algorithm through the shader programming,making the grid line and the surface more conformable.The grid intersection based homing algorithm of shoting points is improved,which homes shoting points to the nearest grid intersections accurately and quickly.(3)In order to complete the function of interaction based on shoting points,the roaming interaction of 3D scene is improved.It can move freely in the first-person perspective and travel along the specified shoting point track,and supports for import and export of the track,enriching the experience.Based on the above research and the relevant practical engineering background,this thesis designs and implements an interactive system based on massive shoting points,and obtains practical application verification.